The Form 4L Resin Mixer improves material performance by keeping resin homogenous in the tank during the printing process. A Resin Mixer is required anytime you are printing. Resin Mixers typically last for the lifetime of your printer.
For convenience, we recommend having one Resin Mixer for each Resin Tank.

Formlabs Form 2 Resin Tank
Ultimaker S5 Glass Build Plate
Form 4L Resin Tank
Form Cure V2
Form 4L Mixer
Ultimaker PLA Blue 